71 lines
2.1 KiB
Bash
Executable File
71 lines
2.1 KiB
Bash
Executable File
#! /bin/bash
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#
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# This collection of scripts aims to install a NOVIT cluster easily, with help of QEMU
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#
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#
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#
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## QEMU functions
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#
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prereqs_qemu() {
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for com in qemu-system-x86_64 truncate docker iptables ; do
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command -v $com 1>/dev/null || error Command $com not found, please install it. Aborting...
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done
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}
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setup_network_qemu() {
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if ! ip li show $QEMU_BR_NAME ; then
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ip li add name $QEMU_BR_NAME type bridge
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ip li set $QEMU_BR_NAME up
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fi
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QEMU_BR_IP=$(extract_var clusters gateway)
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QEMU_BR_MASK=$(extract_var clusters netmask)
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if [ $(echo $QEMU_BR_IP | wc -w) -gt 1 ]; then
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perror "More than one cluster is configured, not compatible with our quick-start setup, exiting"
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fi
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pinfo "Using detected gateway IP $QEMU_BR_IP for bridge $QEMU_BR_NAME"
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if ! ip a show dev $QEMU_BR_NAME | grep $QEMU_BR_IP ; then
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ip a add $QEMU_BR_IP/$QEMU_BR_MASK dev $QEMU_BR_NAME
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iptables -t nat -I POSTROUTING -j MASQUERADE -s $QEMU_BR_IP/$QEMU_BR_MASK \! -o $QEMU_BR_NAME
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iptables -I FORWARD -o $QEMU_BR_NAME -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
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iptables -I FORWARD -j ACCEPT -i $QEMU_BR_NAME
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fi
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if ! test -d /etc/qemu; then
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mkdir -p /etc/qemu
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fi
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if ! grep -q "allow $QEMU_BR_NAME" /etc/qemu/bridge.conf; then
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echo "allow $QEMU_BR_NAME" >> /etc/qemu/bridge.conf
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fi
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}
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run_qemu() {
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id=1
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for host in ${!hosts[*]}; do
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ip route show |grep "${hosts[$host]} dev $QEMU_BR_NAME" ||\
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ip route add ${hosts[$host]} dev $QEMU_BR_NAME
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pinfo "Starting host $host with ip ${hosts[$host]}"
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qemu-system-x86_64 -enable-kvm -smp $QEMU_VM_CPU -m $QEMU_VM_MEM \
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-nic bridge,br=$QEMU_BR_NAME,mac=42:42:42:42:42:0${id} \
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-kernel $ctxdir/data/$host/kernel -initrd $ctxdir/data/$host/initrd-v2 -vga qxl \
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-drive format=raw,file=$ctxdir/data/$host/disk &
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echo $! >$ctxdir/data/$host/pid
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((++id))
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done
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pinfo "$(ls $ctxdir/data/*/pid|wc -w) host(s) have been started"
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}
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# # # # # # # #
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source $(dirname $0)/.common
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check_root
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prereqs
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check_conf
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#fresh_start
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trap clean SIGINT SIGTERM SIGKILL
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declare -A hosts
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setup_network_qemu
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get_hosts
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get_parts
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destroyvms
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run_qemu
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#clean
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